Berkeley DB version 2.x and OpenLDAP running threads ==================================================== Special care has to be taken when building Berkeley DB 2.x for use with OpenLDAP as an slapd backend. If OpenLDAP is with threads, so must Berkeley DB. If OpenLDAP is built without threads, so must Berkeley DB. The configuration tool of Sleepycat's Berkeley DB will automatically set appropriate options on IRIX, OSF/1, and SUN Solaris platforms (version 2.3.16), as well as FreeBSD (version 2.6.4). The options must be manually defined on other plaforms, e.g. on LINUX. On PC-LINUX (kernel version 2.0.35, linux kernel threads as imple- mented by libpthreads.so.1.60.4) with gcc as the standard compiler the environment variable CPPFLAGS must define -D_REENTRANT, while building the Berkeley DB package. DO NOT USE THE -ansi CFLAG, SINCE THEN THE DB PACKAGE'S CONFIGURE CANNOT FIND THE X86/GCC SPINLOCKS, WHICH ARE NEEDED FOR THREAD- SUPPORT WITH THE BERKELEY DB. Please check carefully if your platform is not mentioned above. The OpenLDAP configure tool will most probably find the correct configuration itself. No special action has to be taken while building the OpenLDAP package. Jan, 9th, 1999, /KSp (ksp@openldap.org)